Cutting-nippers



(No Model) S. TAP-T.

CUTTING NIPPERS.

Patented Oct. 26, 1886 WITNESSES C. 26.0%)51476 ATTO R N EY a ohognphur, Wash?" UNITED STATES PATENT OFFICE.

STEPHEN TAFT, OF WORCESTER COUNTY, MASSACHUSETTS.

CUTTING-NIPPIERS.

SPECIFICATION forming part of Letters Patent No. 351,478, dated October26, 1886.

Application filed J une 30, 1886.

To all whom it may concern:

Be it known that I, STEPHEN TAFT, a resident of the county .ofWorcester, in the'State of Massachusetts, have invented ImprovedCutting-Nippers, of which the following is a specification.

My improvement relates, mainly, to such nippers as have theircutting-edges at right angles, or nearly so, to their handles,and whoseedges pass each otheras they out, though they may be applied wholly orin part to others.

It is designed to enable them to do more work with the same power, orthe same work with much less power, than any madein the common way. Thisis accomplished by causing the cutting-edges to approach each other atan angle instead of parallel to each other, one or both edges being madeat an angle varying from a right angle to their line of motion, at whichangle such nippers have hitherto been made, so that in cutting anythinglike a wide piece or a coil of wire they cut progressively andsuccessively in a flat piece cutting one edge first and acrossprogressively to the other, and in the coil cutting one wire off firstand the others successively. This successive shearcut is made by givingthe cutting-edges an angular or diamond form from some point, preferablythe middle part, though for some purposes it may be placed at one side.Thus the edges will approach each other angularly and not parallel,but-more or less differing from a right angle to their line of motion,and also holding or supporting the loose end by means of a rest nearbyholding it from being bent over the edge in cutting, so that a muchthicker or harder piece may be out than if not so held. This isaccomplished by extending the fulcrum-pin, or a portion of it, to make arest on that sideof the edges, the other being usually held, and also bymaking a groove or grooves in one or both of the edges, so that incutting a coil of wire the cutters shall overlap one or more turns, asdesired, without cutting, and out beyond them, forming rings of two,three, or more turns of the wire, and by using several grooves acorresponding number of rings may be cut at one stroke, a notch beingmade in the side of the jaw, if necessary. to give room for insertingthe coiled wire. These features of myimproved cutting-nippers make itacom- .rings from a coil, E, at one stroke.

Serial No. 206,708. (No model.)

plete tool for a great variety of work, and when used by any kind ofpower or by hand requiring much less force to do the work than others. v

In the accompanying drawings illustrating a pair of nippers embodying myinvention, Figure l is a side view. Fig. 2 is a front view of the jawsas seen from the left of Fig. 1, and Fig. 3 shows some cuts illustratingits work. Fig. 4 is a perspective view of the head of thenippers,showing clearly the cutting-edges and the notches in the edge onone side.

The same letters indicate the same parts wherever they occur.

A A are the handles, made in most any of the usual forms, and having astrong joint at the fulcrumpin B. This pin B, or a part of it, isextended on each side to form a rest for the end of the work, being cutoff, as at d, Fig. 1. i

0 Care the jaws, preferably made with thick lips passing each other, andwith their edges in the diamond or angular form shown in Fig. 2, so thata small part only is cutting at any time. The jaws G 0 have also notchesG G, made to allow a coil of wire to pass over between the edges, which,have one or more grooves, c 0', made in one or both, with cuttingedgesleft between large enough to out one wire of the coil, the spaces beingmade for the purpose of leaving one, two, or more turns of the Wireuncut, thus forming rings of two, three, or more turns, as at e 6, Fig.4, several grooves cutting a corresponding numlfir 13f t Fig. 3, isshown a wide piece partly out, showing the progressive cut, the lines I)I) and b 1) indicating the position of the cutting-edges.

I am aware that it is not broadly new to have cutting-jaws at rightangles to the handles, nor to have grooves in the edge of rodcutters,nor to make shear-cutting edges in metal-cutting tools.

Having thus fully described my invention, what I claim therein as new,and desire to patent, is

1. In cutting-nippers, the jaws O C, at right angles to the handles,each jaw having a cutting-edge in diamond or angular form,wherebyoneither side a progressive or shear out can be made, substantially asdescribed.

2. In cutting-nippers, in combination with the jaws O O, at right anglesto the handles, each jaw having cutting-edges in angular form, thefulcrum-pin B, extended and forming a 5 rest for end of the work.

3. In cutting-nippers having an extended fulcrum-pin, one jaw having anangular cutting-edge and the other provided with alternate grooves andangular cutting-edges, substantially as described.

4. The jaws C G at right angles with the handles, each havingdiamond-shaped eutting-edges, as described, and one provided withgrooves in one edge and having anoteh, I 5 G, whereby the wire coil canbe suitably adapted to the notched cutting-edges to be out at any pointdesired.

5. As an article of manufaeture,the cuttingnippers herein described,consisting of a pair of cutting-jaws pivoted together by a fulcrumpinwhich extends on each side, said jaws being at right angles with thehandle and each notched in the side and having diamond or angularcutting-edges, the cutting-edge of one jaw notched, substantially asshown and de- 25 scribed.

STEPHEN TAFT. Witnesses:

C. H. ARNOLD, J AMES GREENE.

